Mallow
Malva parviflora
Malvaceae
Ornamental, medicinal
Mallow is a is common weed of crops, pastures, orchards, roadsides, gardens and disturbed sites. Mallow is able to flower and set seed quickly, which means weed populations can increase in short a period of time. Mallow has a long tap root enabling it to survive under harsh conditions. It also means that control measures are most effective when the plants are small. Mallow is also resistant to gylphosate. It thrives in disturbed areas and loves the extra nitrogen many farms apply.
Mallow can act as a reserviour for a number of important viruses, as well as whitefly and thrips. Importantly, Mallow is a host for various vegetable bugs that can cause significant levels of fruit drop when fruit are small. Cotton bunchy top (CBT) virus (source - crdc.com.au)